Skeletal muscle contraction causes nearly all body movement from walking to nodding. The skeletal muscles function continuously to make tiny adjustments and maintain posture, keeping the body upright. Sensation and perception, as well as Kurdish folk wisdom, Gertrude Jekyll, Pope John Paul II, Colin Wilson, Carol Welch, Mary Starks Whitehouse, Ken Wilbur, Tokujiro Namikoshi, Lee Haney, Thomas Hanna, Jane Harrington, Irene Claremont de Castillejo, Pat Metheny, Rita Rudner, and Saraha are mentioned but not described in the document.